Gaspersz,Vincent. (2005). Production Planning: Inventory Control. Gramedia.
Lua i Stíl Chicago (17ú heag.)Gaspersz,Vincent. Production Planning: Inventory Control. Gramedia, 2005.
Lua MLA (8ú heag.)Gaspersz,Vincent. Production Planning: Inventory Control. Gramedia, 2005.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.